**2. Literate Review**

One solution to the problem of big data analysis is the application of data mining (DM) techniques. The literature contains many examples of the possible applications of DM for electric power systems, e.g.,


As observed above, the application of data mining is wide. This article presents the application of data mining for achieving an automatic classification of long-term power quality (PQ) data from an electrical power network (EPN) of the mining industry with distributed generation (DG). The selected technique is cluster analysis (CA).
